Anodization

Anodization serves to create a protective oxide layer on aluminium by way of anodic oxidation. In contrast to electroplating, the protective layer is not precipitated but rather created by converting the uppermost metallic layer to form oxide. The work-piece can be coloured after anodization. It must always be sealed to guarantee corrosion protection. We can produce layers of up to 25 µm.

Colours

BlackBlueRedOther colours available on request
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Layer thickness category distribution pursuant to DIN 17611

Category

Smallest mean
layer thickness in µm

Smallest local
layer thickness in µm

Location and conditions

10

10

8

Interior, dry

15

15

12

Interior, wet at times.
Exterior, rural atmosphere without air pollution (low levels of SO² from private and industrial combustion)

20

20

16

Exterior, urban and industrial atmosphere (SO² from combustion and industrial exhaust gases)

25

25

20

For especially aggressive atmospheres, e.g.
a combination of industrial and coastal climates

Alloys suitable for anodization